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Polyaromatic Profluorescent Nitroxide Probes with Enhanced Photostability
Author(s) -
Lussini Vanessa C.,
Blinco James P.,
FairfullSmith Kathryn E.,
Bottle Steven E.
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201503393
Subject(s) - isoindoline , perylene , nitroxide mediated radical polymerization , fluorophore , diimide , chemistry , photochemistry , fluorescence , anthracene , iso 14000 , molecule , organic chemistry , polymer , optics , radical polymerization , ecology , environmental management system , irrigation , copolymer , biology , physics
Novel profluorescent mono‐ and bis‐isoindoline nitroxides linked to napthalimide and perylene diimide structural cores are described. These nitroxide‐fluorophore probes display strongly suppressed fluorescence in comparison to their corresponding non‐radical diamagnetic methoxyamine derivatives. The perylene‐based probe possessing two isoindoline systems tethered through ethynyl linkages was shown to be the most photostable in solution, demonstrating significantly enhanced longevity over the 9,10‐bis(phenylethynyl)anthracene fluorophore used in previous profluorescent nitroxide probes.